Window adjuster



A. OLFORT.

, WINDOW ADJUSTEK,

APPLICATION FILED APR. 5. 1921.

Patented June'.13; 1922;

flux 04 FOR) INVENI'OR ATTORNIY Z61! of the United Statearesiding at Cl1i AXEL OLFORT, OF CHICAGO. ILLINOIS.

WINDOW ADJUSTER;

To ZZ eel/.0922. it may cone 3m Be it known that .7, Juan Omroar. a c1ti- A I in the county of Cook and fitate iilinois, have invented new and useful linprovcuients in Window Adjusters. of which the following is a specification.

This invention relates to window adjusters and an object of the invention is to provide a device which is simple in construction and ma be easily at ched to or detached from a window stru ;-;';u.e. the said device being operable for simultaneously moving the upper and lower sash a predetermined distance to permit the circulation of air through a room and also to prevent further movement of either of the window sash. from the outside or without operating the adjuster structure, thereby permitting the occupant of a 7 room or "building to adjust a window to permit circulation of air in a room and leave the building in which the arm. is located without fear of anyone maliciously entering the room through the window and still permit the tree circulation of air through the room at all times.

iinother object of the invention is to provide a window adjuster as specified, which is constructed. so that it may be easily discon nected from a window, when it is desired to clean or paint the woodwork of the window structur-e or for any other purpose and one which may be easily replaced when desired.

(Ether objects oil. the invention will appear in the following detailed description and in the accom fianying drawing wherein:

Fig. 1 is a tragmentarys ction through a window structure showing the improved adjuster applied and showing the window sash closed.

Fig. 2 is a view similar to Fig.1 showing the window sash in a partly open position.

Fig. 3 is a horizontal section on the line 33 of Fig. 1.

Fig. 4: is a detail cross section taken on the line -fl iof Fig. 3. I

Fig. 5 is a detail section illustrating the connection of the adjuster with a window sash.

Referring more particularly to the drawing the window sash 1 and 2 which are slidable vertically one past the other in the usual manner, are provided with recesses 3 cut in their frames or sash 4t. The recess 3 in the lower sash 2 is positioned adjacent to the up- Specification of Letters Patent.

1921. Serial no. 458,653.

per edge of the lower sash while the recess 3 in the upper sash 1 is positioned nearer the lower edge of the sash within its upper edge so as to permit the provision of an adjust-er which relatively light in weight and comparatively simple.

The sash l. and 2 have plates attached thereto about the recesses and these plates are perforated as at 6 having the portions about the edges of the perforations inturned as shown at 7. The hook shaped ends of the arms 9 and 10 of the adjuster engage through the o iienings 6 and about the inturned edges 7 as clearly shown in Fig. 5 of the drawing for connecting the arms 9 and 10 to the sash 1 and 2. The arm 9 is pivotally connected as at 11 to the hand lever 12 at one side of the pivot of the hand lever while the arm 10 is pivotally connected as shown at 14.- to the lever 12 at the opposite side of the pivot 13 of the lever as clearly shown in Figs. 1 and 2 of the drawing so that when the hand lever 12 is moved upon its pivotal connection 13 the arms 9 and 10 will be moved in opposite directions to move the sash 1 and 2 in opposite directions for either opening or closing the window. In Fig. 1 of the drawing the sash are illustratedas closed and it will be noted that the pivot 14 is positioned at one side of a vertical line bisecting the axis or"; pivotal. movement of the lever 12 while the pivot pin 11 is positioned on the opposite side of said line thereby providing locking of the window sash 1 and 2 and preventing "their independent or simultaneous movement independent of operation of the hand lever 12. The same condition exists when the position of the hand lever is reversed. i. e. when it extends upwardly, there fore. the sash 1 and 2 are locked in open posit-ion so that they cannot be opened further either independently or simultaneously without disconnectingthearms 9 and 10 from the respective sash. Tn Fig. 2 of the drawing the lever 12 is shown only partly operated for the purpose of illustration but it is to be understood that when leaving the room in which the structure is mounted the lever 12 is to be moved until it extends substantially vertical upwardly from its pivot 13 at which time it engages the sash 1 in much the same. manner in which it is shown in engagement with the sash 2 in Fig. 1 of the drawing.

The hand lever 12 is pivotally supported upon a bracket 16 which is attached to the window frame 17 in any suitable manner Patented June 13,1922. 5

' The frictional gripping engagement of these until the clamping entire pivot structure outstruck portions is such as to permit relative free pivotal movement of the lever 12 to prevent the offset portion 21 from springing or moving out of the offset portion 22 thumb nut 23 is moved outwardly to release the outstruck portion 21 at which time pressure against the under surface of the overhanging portion 18, by the lower clamping head 25 is relieved and the 13 may he slipped out-- wardly through the recess 19 for disconnecting the lever 12 from the bracket structure 16, when it is desired to detach the ad juster. The portion 26 of the stud 20, which engages in the slot 19, is rectangular in cross section to prevent pivotal movement of the stud 20 during movement of the lever 12. In detaching the adjuster, sash 1 and 2 are moved towards each other into substantially the position illustrated'in Fig. 2 of the drawing and after the stud 20 has been removed from its operative connection with the bracket 16 the lever 12 is slightly operated to permit the arms 9 and 10 to be rocked sufiiciently to withdraw the hooks 8 from the recesses 3.

The reverse action takes place when remounting the adjuster upon the window.

Itis, of course, to be understood that the invention may be constructed in various other manners and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. In a window adjuster, the combination with a pair of slidable sash of a pivotally mounted hand lever, arms pivotally con 1 nected to said hand lever upon opposite sides ment when said hand lever is positioned at either terminal of its movement.

2. In a window adjuster, the combination with a pair of slidable sash, of a pivotally mounted hand lever, arms pivotally con-, nected to said lever upon opposite sides of its pivot, said sash providedwith recesses, a plate mounted over said recesses and perforated, and hooks formed on the ends of said arms and engaging in said recesses for adjusting said sash upon pivotal movement of said lever, the pivots of said arms and said lever being positionedupon opposite sides of a line bisecting the axes of pivotal movement of the lever whereby said sash will be locked against movement when said hand lever is positioned at either terminal of its movement.

3. In a window adjuster, a bracket, a pivoting stud detachably carried thereby, a hand lever pivotally mounted upon said stud. and provided with an outstruck portion, said bracket provided with an outstruck portion for receiving the outstruek portion of said lever, a clamp for clamping said outstruck portions in engagement to permit pivotal movement of said lever, and prevent detaching movement of said lever from the bracket, and window sash operating arms pivotally carried by said. lever.

4E. In a window adjuster, an operating bracket, a pivoting stud detachably carried thereby, a upon said stud and provided with an outstruck portion, said bracket provided with an outstruck portion for receiving the outstruck portion of said lever, a clamp for clamping said outstruck portions in engagement to permit pivotal movement of said lever andprevent detaching movement of said lever and bracket, window sash operating arms pivotally connected to said lever upon opposite sides of-its pivot and upon opposite sides of a line bisecting the axis of pivotal movement of the lever. I

In testimony whereof I affix my signature.

AXEL OLFOBT. 

